Apparatus for galvanizing chain



Apri@ 8 w24., 1,489,393

W. G. MILNE. l

APPARATUS FOR GALVANIZING CHAIN Filed Oct. 13 1922 Patented Apr. 8,1924.

STATES WINFORD G. MILNE, OF HAMILTON, ONTARIO, CANADA, ASSIGNOR TO N.

1,489,393 PATENT OFFICE.

SLATER COM PANY, LIMITED, OF HAMILTON, ONTARIO, CANADA.

APPARATUS FOR GALVANIZI'NG CHAIN.

Application filed October 13, 1922.

To all whom t may concern.'

Be it known that I, VVINFORD G. MiLNE, ot' the city of Hamilton, in thecounty of llVentworth, Province of Ontario, Canada, a subject of theKing of Great Britain, have invented certain new and useful Im rovementsin Apparatus for Galvanizing hain, of which the following is aspecification.

This invention relates to apparatus used t'or galvanizin chain. With theapparatus as heretofore own, it is found that. the chain is veryunevenly coated. which not. only spoils 'the appearance of the chain,but is also wasteful of the spelter with which the chain is coated.'

The object of my invention is therefore to devise apparatus by means ofwhich the chain may be evenly coated and which will at the same timekeep the links of the chain agitated relative to one another and thusprevent the links being secured to one another while the spelter issetting.

l attain my object by means of the con st ructions hereinafter describedand illustrated in the accompanying drawings in which* Fig. 1 is a sideelevation ot my improved apparatus;

Fig. Q a plan view `of part of the same: and

Fig. 3 a section on the line in Fig. 1.

In the drawings like numerals of reference indicate corresponding part-sin the diilerent figures.

1 is a tank which contains the spelter with which the chain is to becoated. At one end ot this tank is the trame 2 on which is journalledthe feed wheel 3 over which the chain is fed to the tank 1.

At the other end o'f the tank 1 is the frame 4 on which is journalledthe wheel 5 overwhich the chain is withdrawn from the spelter tank 1.

0n the frame 2 just above the top of the tank is journalled the idlerguide pulley 6. which guides the chain from the teed wheel 3 to the tankl. On the trame 4 opposite the pulley 6 is also journalled an idlerguide pulley 7, which guides the chain from the spelter tank 1 tothewheel 5.

From the wheel 5 the chain passes downwardly between the two agitators 8to the water tank 9 where it is cooled and into which any excess speltershaken from the chain by the agitators drops.

Serial No. 594,393.

From this tank 9 the chain is withdrawn in any suitable manner.

The wheels 3 and 5 are each positively driven al the saine rate ofspeed, and Sullicient chain will always be between them so that thechain will always hang down into the spelter in the tank 1.

As chains ol various sizes have to be coated. l have devised aparticular construction of the wheels 3 and 5 suitable for any sizechain so as to avoid the necessity of having to change wheels wheneverit is desired to coat a t'resh size of chain.

These wheels 3 and 5 are therefore constructed ot' a hub and a pluralityof radially extending spokes. These spokes are, however, bentalternately outwardly to right and lett so that aV-shaped space isformed between the spokes.

From this construction it follows that when a small chain is beinecoated, it will be between the spokes 10 close to the huh, but it alarger chain is being coated, it will lie between the spokes nearertheir outer ends.

The agitators 8 are also ot peculiar construction, each comprising apair of hubs 11 into which extend the ends of. Ushaped arms 12. Onreference to Fig. 1, it will be seen that these agitators are driven sothat they will rotate in opposite directions and that the U-sha ed armson one agitator alternate with t ose of the other agitator so that thechain rpassing down between them is continuallyv knocked in oppositedirections by the arms of the two agitators. The arms l2 of theagitators will preferably be provided with anti-friction rollers.

The drive for the agitators is also so arranged that the agitators arerotated at a much more rapid rate than the rate at which the chainpasses through the apparatus.

The wheels and agitators will, of course, be suitabl driven in themanner hereinbelfore described by means of suitable gears or pulleys andbelts. One suitable arrangement ot drive is illustrated in dottedlinesin Fig. 1.

The excess spelter which drops into the tank 9 may be removed in anydesired manner and again melted :for use.

From the above description it will he seen that l have devised apparatuswhich will satisfactorily attain the objects ot my invention as setforth in the preamble ot this L Wheels 3 and 5 described there is also apos itive feed and Withdrawal of the chain, as the latter `cannotpossibly slip.

lt Will be understood, of course, that various changes may be made inthe construe tional details which will fall within the scope of myinvention.

l claim as my invention is :H

l. ln apparatus for eea-ting chain, the combination of a dipping tankinto which the chain is led; means for withdrawing the chain from thedipping tank; and agitators fior agitating the chain to remoye excesscoating, the movement of said agitators at the point of agitation beingsubstantially in the same direction as the travel oi' the chain, but agreater speed.

2, in apparatus for coating cham, the combination or a dipping tank intowhich the chein is led; means for withdrawing the chain from the dippingtank; and means "L the ehainto remove' excess Comprising a pair oiagitators be which the `chain led, each having a ality of radiallyextending arms, the s et one agitator lzzernatingwith the ns or' theother agitator to beat the chain in opposite directions ln apparet 'toination of e coating chain, the ding tanlr into which nies-ins iterwithdrawing the dipping tank; and means e chain to remove excess "rr-apair of agitators betiie chain is led, .eacli having a radiallyextending armsy the agitator alternating; with the er agitator to beetthe eliain erections, the mov ent of .said ien. beating the eliain b'ing in the direction as? but a greater speed than u/enfient o'i thechain. l

for nesting' @beim tbe spokes, said spokes beingalternal'ely lientoutwardly to either side'to form between them a V-sliapcd groove; andmeans for lagitating the chain to remove excess coatn ing. v

In apparatus for coating chain, the combination o'l a dipping tank intowhich the chain is led; a wheel adapted to Withdranv the chain from thetank comprising a. hub having` a plurality oi' radially directed spokes,said spokes being; alternately bent outwardly to either side to formbetween them a ll-shaped groove; and agitators for agitatinnj the chainto remove excess coat ingr, the movement olf said agitators at the pointof agitation being substantially in the same direction as the travel ofthe chain, but at a greater speed.

6. ln apparatusl for coating chain, the combination of a dipping tankinto which the chain is led; aV wheel adapted to Withdraw the chain fromthe tank comprising a hub having; a plurality of radially directedspokes said spokes being alternately bent outwardly to either side to-form between them a lil-shaped groove; and means for agitating the bainto remove excess coating comprising a pair of agitators between whichthe' chain is led, each having aplurality of radially extending arms,the arms of one agitator alternating with the arms of the other agitatorto beat the eiiain in opnosite directions.

2T. in apparatus for coating` oliain, the combination of a feed wheelover Wliieb the chain is led; a dipping tenir; a wheel. adapt-l ed toWithdraw the chain from the tanky each of said Wheels eomarisingi' a.hub hav ingn a plurality et radia'iy infected spokes, said spokes beine;alternately bent outwardly to either side to forni between them a V-shaped groove; and means for agitatingg the chain to remove excesscoatinlr. y

Signed this 19th day of? September i992.

Gf. llllllllill.

llitnesses Gallino-trug lid.

